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From: Jens Axboe <[email protected]>
To: Simon Zeni <[email protected]>, [email protected]
Subject: Re: [PATCH] examples: disable ucontext-cp if ucontext.h is not available
Date: Wed, 28 Oct 2020 21:00:41 -0600	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <C6OZDHZNAEV7.2KUIZYYGFKTWW@gengar>

On 10/28/20 7:23 PM, Simon Zeni wrote:
> On Wed Oct 28, 2020 at 3:06 PM EDT, Jens Axboe wrote:
>> The log for those would be interesting. rename/unlink is probably
>> me messing up on skipping on not-supported, sq-poll-* ditto. The
>> others, not sure - if you fail with -1/-12, probably just missing
>> capability checks.
> 
> There you go
> https://paste.sr.ht/~bl4ckb0ne/61a962894091a8442fc7ab66934e22930122ff18

Yeah, so outside of the double-poll-crash which crashes due to some
syzbot mmap magic unrelated to io_uring, all failures are either:

-EPERM: don't properly check for !root
-ENOMEM: user doesn't have a high enough ulimit -l setting
unlink/rename not properly checking kernel level support (fixed this one)

I need to provide a generic queue setup helper that catches the two
general error cases and skips tests (saying why), then it should run
clean there too.

-- 
Jens Axboe


      reply	other threads:[~2020-10-29  7:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-28  2:31 [PATCH] examples: disable ucontext-cp if ucontext.h is not available Simon Zeni
2020-10-28 22:33 ` Jens Axboe
2020-10-29  0:53   ` Simon Zeni
2020-10-29  1:06     ` Jens Axboe
2020-10-29  1:23       ` Simon Zeni
2020-10-29  3:00         ` Jens Axboe [this message]

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